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On-surface coordination chemistry: direct imaging of the conformational freedom of an axial ligand at room temperature

Wäckerlin, Christian and Siewert, Dorota and Jung, Thomas A. and Ballav, Nirmalya. (2013) On-surface coordination chemistry: direct imaging of the conformational freedom of an axial ligand at room temperature. Physical Chemistry Chemical Physics , 15 (39). pp. 16510-16514.

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Abstract

The on-surface ligation of nitric oxide (NO) with Co-tetraphenylporphyrin (CoTPP) sublimed onto oxygen-reconstructed Ni(001) is studied using room-temperature scanning tunneling microscopy (STM) and complementary photoemission spectroscopies. On the oxygen-reconstructed substrates, the porphyrins are observed to form well-ordered, self-assembled layers. STM directly images the NO ligand as a characteristic feature in the center of the molecule. Under certain STM imaging conditions the dynamicity of this feature can be related to the temperature-activated conformational flexibility of the NO ligand. This provides an indirect confirmation of the bending of the Co-NO bond, as predicted from classical coordination chemistry.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik
UniBasel Contributors:Jung, Thomas A.
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Royal Society of Chemistry
ISSN:1463-9076
e-ISSN:1463-9084
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
Identification Number:
Last Modified:18 Sep 2017 10:29
Deposited On:27 Oct 2016 08:10

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